DRY FATS AS ENERGY SOURCE'IN BROILER DIETS | ||
| Journal of Animal and Poultry Production | ||
| Article 7, Volume 30, Issue 7, July 2005, Pages 3625-3636 PDF (1.99 M) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/jappmu.2005.238024 | ||
| Author | ||
| A. H. Abd EI-Gawad, | ||
| Dept. Anlm. Prod. , National Research Centre, Dokkl, Giza, Egypt. | ||
| Abstract | ||
| This research work was carried out to study the effect of two dietary dry fat sources versus dietary vegetable oil (soybean oil) on the performance of broiler chicks. Two commercial sources of dry fat were used: 1-dry fat as hydrolyzed oils blend (OFOB). 2-dry fat calcium salt (DFCS). One-day-old broiler chicks (Arbor Acres) were individually weighed, wing banded and randomly distributed into 3 equal treatments group each of 18 individual replicates. During the experimental period, which lasted for 49 days. chicks were fed the experimental diets which were formulated to satisfy the nutrient requirements of broiler chicks according to guide recommendations of "Arbor Acres" broiler, and were adjusted to be iso-nitrogenous and iso-caloric. The experimental diets were formulated in which the first one (T,) was a diet containing soybean oil (SO) and served as a control. The other experimental diets contained either DFOB (T2) or DFCS (T3) as energy sources. Data on live body weight (LBW), feed intake and calculated feed conversion ratio (FCR) were recorded at the end of each period. while performance index (PI) and production number (PN) were calculated. Carcass characteristics and serum biochemical variables were taken at the end of experimental period (49 days of age). Results obtained can be abstracted as follow: Control treatment (soybean oil) recorded the best values of LBW, FCR, PI and PN, during all experimental periods (starter, grower and finisher) compared to the other experimental treatments. Treatment 2 (DFOB) recorded the lowest values for performance traits. Neither carcass characteristics nor blood constituents were statistically affected by the experimental treatments. - Fatty acids profile for the tested materials (SO, DFOB and DFCS) revealed that soybean oil (SO) contained the high unsaturated fatty acids (TU) and the lowest saturated fatty acids (TS) values, while DFOB product had the highest TS and the lowest TU .alues. The calculated AME reflected the fatty acids profile of the tested materials, where SO had the highest value of AME followed by DFCS product, then DFOB product. - The simple calculations of economic efficiency confirmed the performance results obtained in this study, where treatment (SO) recorded the lowest feed cost I kg LBW and the best economic efficiency compared to T) (DFCS) and T2 (DFOB) .. respectively. It could be concluded according to the results of this particular work that: -Oils are more valuable energy source In broiler diets than dry fat oils blend used in this study. The low performance of dietary dry fat oils blend could be attributed to the manufacturing process. -Dry fat calcium salt used in this study needs more studies to specify the correct AME value suitable for use in broiler diets. -The use of dry fat In poultry diets Is a new concept that needs thorough studies before official registration, in Egypt. | ||
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